Home / 712,692.43-983,518.38-390,404.77

Finding the Fourth Proportional to 712,692.43, 983,518.38 and 390,404.77

Calculator

Solution

The fourth proportional to 712,692.43, 983,518.38 and 390,404.77 is: 538,760.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,692.43 : 983,518.38 = 390,404.77 : x
  2. Step 2: Convert to fraction form
    712,692.43/983,518.38 = 390,404.77/x
  3. Step 3: Cross multiply
    712,692.43x = 983,518.38 × 390,404.77
  4. Step 4: Simplify right side
    712,692.43x = 383,970,264,475.88
  5. Step 5: Solve for x
    x = 383,970,264,475.88/712,692.43
  6. Step 6: Final answer
    x = 538,760.13

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.